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(no To-header on input) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ACP3x I2S (CPU DAI) can act in normal I2S and TDM modes. Added support for TDM mode. Desired mode can be selected from ASoC machine driver. Signed-off-by: Ravulapati Vishnu vardhan rao --- sound/soc/amd/raven/acp3x-i2s.c | 28 ++++++++++++++++++++++------ sound/soc/amd/raven/acp3x.h | 1 + 2 files changed, 23 insertions(+), 6 deletions(-) diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c index 7f05782..0856e0c 100644 --- a/sound/soc/amd/raven/acp3x-i2s.c +++ b/sound/soc/amd/raven/acp3x-i2s.c @@ -43,7 +43,7 @@ static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, u32 rx_mask, int slots, int slot_width) { struct i2s_dev_data *adata; - u32 val, reg_val, frmt_val, frm_len; + u32 val, reg_val, frmt_reg, frm_len; u16 slot_len; adata = snd_soc_dai_get_drvdata(cpu_dai); @@ -70,15 +70,31 @@ static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, frm_len = FRM_LEN | (slots << 15) | (slot_len << 18); if (adata->substream_type == SNDRV_PCM_STREAM_PLAYBACK) { - reg_val = mmACP_BTTDM_ITER; - frmt_val = mmACP_BTTDM_TXFRMT; + switch (adata->i2s_instance) { + case I2S_BT_INSTANCE: + reg_val = mmACP_BTTDM_ITER; + frmt_reg = mmACP_BTTDM_TXFRMT; + break; + case I2S_SP_INSTANCE: + default: + reg_val = mmACP_I2STDM_ITER; + frmt_reg = mmACP_I2STDM_TXFRMT; + } } else { - reg_val = mmACP_BTTDM_IRER; - frmt_val = mmACP_BTTDM_RXFRMT; + switch (adata->i2s_instance) { + case I2S_BT_INSTANCE: + reg_val = mmACP_BTTDM_IRER; + frmt_reg = mmACP_BTTDM_RXFRMT; + break; + case I2S_SP_INSTANCE: + default: + reg_val = mmACP_I2STDM_IRER; + frmt_reg = mmACP_I2STDM_RXFRMT; + } } val = rv_readl(adata->acp3x_base + reg_val); rv_writel(val | 0x2, adata->acp3x_base + reg_val); - rv_writel(frm_len, adata->acp3x_base + frmt_val); + rv_writel(frm_len, adata->acp3x_base + frmt_reg); adata->tdm_fmt = frm_len; return 0; } diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h index ed1acbc..3c28644 100644 --- a/sound/soc/amd/raven/acp3x.h +++ b/sound/soc/amd/raven/acp3x.h @@ -78,6 +78,7 @@ struct acp3x_platform_info { struct i2s_dev_data { bool tdm_mode; unsigned int i2s_irq; + u16 i2s_instance; u32 tdm_fmt; u32 substream_type; void __iomem *acp3x_base; -- 2.7.4